Goodman GM9S92 Furnace Instruction Manual

Manual Goodman GM9S92 Furnace Instruction Manual

Goodman GM9S92 Furnace Instruction Manual

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Goodman GM9S92 Furnace

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Goodman GM9S92 Furnace

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Goodman GM9S92 Furnace

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Goodman GM9S92 Furnace Instructions

Here we offer the Goodman GM9S92 Furnace manual completely free and in English. We have cataloged this manual in the Furnaces section on Manualverse, and it has been rated by 1 users with an average rating of 5. If you have any specific questions about Goodman GM9S92 Furnace, we suggest checking the Frequently Asked Questions (FAQs) section of this manual.


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Goodman GM9S92 Furnace Specifications

Feature Specification
Heating Input (High Fire) 40,000 – 120,000 BTU/h
Heating Output (High Fire) 36,840 – 110,520 BTU/h
AFUE Rating Up to 92%
Temperature Rise Range 25-65°F (varies by model)
Vent Diameter 2" - 3" PVC (combustion air & flue outlet)
Number of Burners 2 to 6 (varies by model)
Circulator Blower Horsepower 1/2 to 1 HP @ 1075 RPM (Multi-speed ECM)
Circulator Blower Speeds 9 speeds
Minimum Recommended Filter Size (1) 16x25 (side) or (1) 14x25 (bottom) – other sizes apply to larger models
Min. Circuit Ampacity 10.3 – 16.9 A
Max. Overcurrent Device 15 – 20 A
Electrical Supply 115 VAC, 60 Hz, single-phase
Gas Service Connection ½" FPT
Shipping Weight 106 – 154 lbs (varies by model)
NOx Emissions Standard California 40 ng/J Low NOx compliant
Certifications AHRI Certified; ETL Listed

Goodman GM9S92 Furnace Details

The Goodman GM9S92 Furnace boasts a robust construction designed for long-lasting performance. It incorporates a heavy-duty aluminized-steel tubular heat exchanger for efficient heat transfer and a stainless-steel secondary heat exchanger to maximize efficiency by extracting additional heat. The furnace is equipped with a single-stage gas valve and a durable Silicon Nitride igniter for reliable ignition. Air circulation is managed by a multi-speed ECM blower motor, while a quiet single-speed induced draft blower ensures proper combustion and venting.

This model features a self-diagnostic control board that simplifies troubleshooting and maintenance by providing error codes. All GM9S92 models meet the California 40 ng/J Low NOx emissions standard, ensuring environmental compliance. The unit is AHRI Certified and ETL Listed, confirming its adherence to industry performance and safety standards. Its design allows for versatile multi-position installation, supporting upflow, horizontal left, or horizontal right configurations to suit various home layouts.

The GM9S92 furnace offers flexible venting options, certified for both direct vent (two-pipe) and non-direct vent (one-pipe) applications. Upflow models specifically can utilize easy-to-install top venting, with an optional side venting capability for added convenience. For ease of installation and service, the furnace provides convenient left or right side connections for both gas and electrical service, allowing installers to adapt to specific site requirements efficiently.

Designed with cabinet integrity in mind, the GM9S92 features a heavy-gauge steel cabinet with a durable finish that protects internal components. It boasts a low cabinet air leakage rate of ≤ 2% (QLeak), contributing to overall system efficiency. The heat exchanger cabinet is foil-faced and insulated, which helps contain heat and reduce operational noise. The furnace also includes an airtight solid bottom or side return with easy-cut tabs, simplifying the removal process for bottom air-inlet applications.

For fuel flexibility, the GM9S92 furnace can be field-converted to operate on LP (liquid propane) gas with the use of an appropriate conversion kit. The control board includes a 40 VA transformer, which is essential for proper operation with most cooling equipment. Safety is paramount, with built-in features such as a blower door interlock switch that interrupts power when the blower door is open, preventing accidental operation during servicing.

Beyond the core components, the furnace is equipped with several crucial safety circuits, including a Primary Limit that monitors heat exchanger temperatures, Auxiliary Limits for blower compartment temperature, and Rollout Limits to detect issues with burner flames. Pressure Switches ensure adequate airflow for combustion and proper condensate drainage, while a Flame Sensor confirms the presence of a stable flame. These integrated systems work in concert to ensure — safe and efficient operation.

Frequently Asked Questions (FAQs)

Can't find the answer you need? Here are some frequently asked questions about the Goodman GM9S92 Furnace, and we answer them below.


What is the AFUE rating of the Goodman GM9S92 Furnace?
The Goodman GM9S92 Furnace has an Annual Fuel Utilization Efficiency (AFUE) rating of up to 92%, indicating its high efficiency in converting fuel to heat.

What type of gas does the GM9S92 furnace use, and can it be converted?
The GM9S92 furnace is primarily manufactured for use with natural gas. However, it can be field-converted to operate on LP (liquid propane) gas by installing the appropriate LPM-07 LP Conversion kit.

What installation positions are supported by the GM9S92 furnace?
The GM9S92 furnace is designed for multi-position installation, supporting upflow, horizontal left, or horizontal right configurations.

Are air filters included with the furnace? How important is filter maintenance?
No, filters are not shipped with the furnace. They must be provided, sized, and installed externally by a qualified installer. Proper filter maintenance, including cleaning or replacing every two months or as needed, is critical for adequate heating/cooling performance and to prevent equipment damage.

What are the minimum clearances to combustible materials for this furnace?
For upflow installations, the minimum clearances are 0" for sides and rear, 3" for the front, 0" for the flue, and 1" for the top. For horizontal installations, it's 6" for sides, 0" for rear, 3" for front, 0" for flue, and 6" for top. The bottom must be wood only if placed on a combustible floor.

How is the temperature rise adjusted on the GM9S92 furnace?
The temperature rise of the furnace must be within the range specified on the unit rating plate. It is adjusted by changing the circulator blower speed: increasing speed reduces temperature rise, and decreasing speed increases it.

What safety features does the Goodman GM9S92 furnace include?
The GM9S92 includes an integrated control module with self-diagnostics, primary and auxiliary limit switches (for overheating protection), rollout limit switches (for burner flame issues), pressure switches (for airflow monitoring), and a flame sensor (to confirm flame presence). It also has a blower door interlock switch.

Can the Goodman GM9S92 furnace be installed in a mobile home or outdoors?
No, the GM9S92 furnace is explicitly NOT designed or certified for use in mobile homes, trailers, recreational vehicles, or for outdoor applications. It must be installed indoors.

What should I do if I smell gas near the furnace?
If you smell gas, do NOT try to light any appliance, touch any electrical switch, or use any phone in your building. Immediately call your gas supplier from a neighbor's phone. If you cannot reach them, call the fire department.

How often should the furnace be inspected?
A qualified installer or service agency should inspect the furnace at least once per year, ideally at the beginning of the heating season, to ensure all components are in proper working order.

Can the GM9S92 furnace be used at high altitudes?
Yes, when installed at high altitude, the appropriate High Altitude Kit (including orifices and pressure switch) must be installed to compensate for reduced gas fuel and combustion air density.

What are the requirements for the vent and combustion air pipes?
The furnace is dual-certified for non-direct (single pipe) or direct (dual pipe) venting. PVC, CPVC, or ABS pipe and fittings (with specific material requirements for Canada) are used. Vent pipes must slope downward towards the furnace (1/4 inch per foot) to return condensate, and all exposed piping in freezing temperatures must be insulated.

Is the furnace equipped with a self-diagnostic control board?
Yes, the Goodman GM9S92 Furnace features a self-diagnostic control board. This board provides error codes via an LED display, which greatly assists in monitoring abnormal functions and troubleshooting potential safety concerns.

How do I determine the correct filter size for my furnace?
You should refer to the "Filter Sizing Charts" in the furnace manual, which lists minimum recommended filter sizes based on the specific furnace model. Larger filters may be used, and filters can also be centrally located.

What are the electrical requirements for the furnace?
The furnace requires a 115 VAC, 60 Hz, single-phase electrical supply. It must be connected to a separate fused branch electrical circuit with properly sized wire and a fuse or circuit breaker sized according to the unit rating plate (15-20 amps max overcurrent device). The furnace must be electrically grounded.

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